A wide-ratio gearbox was standard , but ratios suited to street and road race use were available as options . The shortened frame had a single front downtube joining a duplex under-engine section and a rigid rear end with a single sprung seat . Wheelbase was a compact 53 inches with 6 1 ⁄ 2 inches ground clearance , while all-up weight was a laudable 304lb dry . Up front were hydraulically-damped telescopic forks with an unusual 20-inch rim with 3.00 trials tyre , while the rear used the then-standard 19-incher with 4.00 tyre . Seven-inch brakes were used at each end . The Trophy took the Earls Court show by storm . While obviously purposeful , it also looked good , with header pipes siamesed into a single high-level pipe and a distinctive teardrop muffler , alloy racing guards , wide handlebars , magneto ignition and compact chromed fuel tank set off with blue pinstriping . It fitted the needs of the post-war populace perfectly . Anyone on a limited budget could ride it daily , then take off the quick-remove headlight and ride in reliability trials , hillclimbs , scrambles , grass tracks or observed trials during the weekend . Triumph also offered performance components , developing a parts package so comprehensive it filled six pages of the manual . Tuners could choose from five different compression
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